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        <h1 id="安装"><a href="#安装" class="headerlink" title="安装"></a>安装</h1><h2 id="elasticsearch"><a href="#elasticsearch" class="headerlink" title="elasticsearch"></a>elasticsearch</h2><p><a href="https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-6.3.0.zip" target="_blank" rel="noopener">https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-6.3.0.zip</a></p>
<p>修改配置</p>
<p>config/elasticsearch.yml</p>
<figure class="highlight yaml"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br></pre></td><td class="code"><pre><span class="line"><span class="string">http.cors.enabled:</span> <span class="literal">true</span> </span><br><span class="line"><span class="string">http.cors.allow-origin:</span> <span class="string">"*"</span></span><br><span class="line"><span class="string">node.master:</span> <span class="literal">true</span></span><br><span class="line"><span class="string">node.data:</span> <span class="literal">true</span></span><br><span class="line"><span class="string">network.host:</span> <span class="number">0.0</span><span class="number">.0</span><span class="number">.0</span></span><br><span class="line"><span class="string">cluster.name:</span> <span class="string">my-application</span></span><br><span class="line"><span class="string">node.name:</span> <span class="string">node-1</span></span><br></pre></td></tr></table></figure>
<h2 id="中文分词器"><a href="#中文分词器" class="headerlink" title="中文分词器"></a>中文分词器</h2><p><a href="https://codeload.github.com/medcl/elasticsearch-analysis-ik/zip/master" target="_blank" rel="noopener">https://codeload.github.com/medcl/elasticsearch-analysis-ik/zip/master</a></p>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">E:\soft\elasticseach\elasticsearch-6.3.0\bin&gt;elasticsearch-plugin.bat install https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v6.3.0/elasticsearch-analysis-ik-6.3.0.zip</span><br></pre></td></tr></table></figure>
<p>测试</p>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br></pre></td><td class="code"><pre><span class="line">GET _analyze?pretty</span><br><span class="line">&#123;</span><br><span class="line">  "analyzer": "ik_smart",</span><br><span class="line">  "text": "中华人民共和国国歌"</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<h2 id="elasticsearch-head"><a href="#elasticsearch-head" class="headerlink" title="elasticsearch-head"></a>elasticsearch-head</h2><p><a href="https://codeload.github.com/mobz/elasticsearch-head/zip/v5.0.0" target="_blank" rel="noopener">https://codeload.github.com/mobz/elasticsearch-head/zip/v5.0.0</a></p>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre></td><td class="code"><pre><span class="line">cd E:\soft\elasticseach\elasticsearch-head-5.0.0</span><br><span class="line">npm install -g grunt-cli</span><br><span class="line">npm install</span><br></pre></td></tr></table></figure>
<h1 id="启动"><a href="#启动" class="headerlink" title="启动"></a>启动</h1><h2 id="elasticsearch-1"><a href="#elasticsearch-1" class="headerlink" title="elasticsearch"></a>elasticsearch</h2><figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre></td><td class="code"><pre><span class="line">e:</span><br><span class="line">cd E:\soft\elasticseach\elasticsearch-6.3.0\bin</span><br><span class="line">elasticsearch.bat</span><br></pre></td></tr></table></figure>
<p><a href="http://127.0.0.1:9200/" target="_blank" rel="noopener">http://127.0.0.1:9200/</a></p>
<h2 id="kibana"><a href="#kibana" class="headerlink" title="kibana"></a>kibana</h2><figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre></td><td class="code"><pre><span class="line">e:</span><br><span class="line">cd E:\soft\elasticseach\kibana-6.2.4-windows-x86_64\bin</span><br><span class="line">kibana.bat</span><br></pre></td></tr></table></figure>
<p><a href="http://127.0.0.1:5601" target="_blank" rel="noopener">http://127.0.0.1:5601</a></p>
<h2 id="elasticsearch-head-1"><a href="#elasticsearch-head-1" class="headerlink" title="elasticsearch-head"></a>elasticsearch-head</h2><figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">cd E:\soft\elasticseach\elasticsearch-head-5.0.0\</span><br><span class="line">grunt server</span><br></pre></td></tr></table></figure>
<p><a href="http://127.0.0.1:9100/" target="_blank" rel="noopener">http://127.0.0.1:9100/</a></p>
<h1 id="基本操作"><a href="#基本操作" class="headerlink" title="基本操作"></a>基本操作</h1><h2 id="查看状态"><a href="#查看状态" class="headerlink" title="查看状态"></a>查看状态</h2><figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">GET _cat/health?v</span><br></pre></td></tr></table></figure>
<figure class="highlight tex"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">epoch      timestamp cluster       status node.total node.data shards pri relo init unassign pending_tasks max_task_wait_time active_shards_percent</span><br><span class="line">1547428524 01:15:24  elasticsearch green           1         1      0   0    0    0        0             0                  -                100.0<span class="comment">%</span></span><br></pre></td></tr></table></figure>
<h2 id="增"><a href="#增" class="headerlink" title="增"></a>增</h2><h3 id="设置mapping"><a href="#设置mapping" class="headerlink" title="设置mapping"></a>设置mapping</h3><figure class="highlight json"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br></pre></td><td class="code"><pre><span class="line">PUT store</span><br><span class="line">&#123;</span><br><span class="line">  <span class="attr">"mappings"</span>:&#123;</span><br><span class="line">    <span class="attr">"book"</span>: &#123;</span><br><span class="line">       <span class="attr">"properties"</span>: &#123;</span><br><span class="line">          <span class="attr">"bookId"</span>: &#123;<span class="attr">"type"</span>: <span class="string">"long"</span>&#125;,</span><br><span class="line">          <span class="attr">"bookName"</span>: &#123;<span class="attr">"type"</span>: <span class="string">"text"</span>&#125;,</span><br><span class="line">          <span class="attr">"publishDate"</span>: &#123;</span><br><span class="line">			<span class="attr">"type"</span>: <span class="string">"date"</span>,</span><br><span class="line">			<span class="attr">"format"</span>: <span class="string">"yyyy-MM-dd HH:mm:ss||yyyy-MM-dd||epoch_millis"</span></span><br><span class="line">		  &#125;,</span><br><span class="line">		  <span class="attr">"description"</span>: &#123;</span><br><span class="line">            <span class="attr">"type"</span>: <span class="string">"text"</span>,</span><br><span class="line">			<span class="attr">"analyzer"</span>: <span class="string">"ik_max_word"</span>,</span><br><span class="line">          &#125;,</span><br><span class="line">		  <span class="attr">"isbn"</span>: &#123;<span class="attr">"type"</span>: <span class="string">"text"</span>&#125;,</span><br><span class="line">		  <span class="attr">"tags"</span>: &#123;</span><br><span class="line">			<span class="attr">"type"</span>:<span class="string">"keyword"</span></span><br><span class="line">		  &#125;,</span><br><span class="line">		  <span class="attr">"price"</span>:&#123;<span class="attr">"type"</span>:<span class="string">"long"</span>&#125;</span><br><span class="line">       &#125;</span><br><span class="line">    &#125;</span><br><span class="line">  &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<h3 id="新增数据"><a href="#新增数据" class="headerlink" title="新增数据"></a>新增数据</h3><figure class="highlight json"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br></pre></td><td class="code"><pre><span class="line">PUT /store/book/1</span><br><span class="line">&#123;</span><br><span class="line">	<span class="attr">"bookId"</span>:<span class="number">1</span>,</span><br><span class="line">	<span class="attr">"bookName"</span>:<span class="string">"深入理解虚拟机"</span>,</span><br><span class="line">	<span class="attr">"description"</span>:<span class="string">"售价100的java图书,包含虚拟机"</span>,</span><br><span class="line">	<span class="attr">"isbn"</span>:<span class="string">"11233123"</span>,</span><br><span class="line">	<span class="attr">"price"</span>:<span class="number">100</span>,</span><br><span class="line">	<span class="attr">"publishDate"</span>:<span class="number">1547430116594</span>,</span><br><span class="line">	<span class="attr">"tags"</span>:[<span class="string">"java"</span>,<span class="string">"虚拟机"</span>]</span><br><span class="line">&#125;</span><br><span class="line"></span><br><span class="line">PUT /store/book/2</span><br><span class="line">&#123;</span><br><span class="line">	<span class="attr">"bookId"</span>:<span class="number">2</span>,</span><br><span class="line">	<span class="attr">"bookName"</span>:<span class="string">"java最佳实践"</span>,</span><br><span class="line">	<span class="attr">"description"</span>:<span class="string">"售价200的java图书"</span>,</span><br><span class="line">	<span class="attr">"isbn"</span>:<span class="string">"11233123"</span>,</span><br><span class="line">	<span class="attr">"price"</span>:<span class="number">200</span>,</span><br><span class="line">	<span class="attr">"publishDate"</span>:<span class="number">1547430116594</span>,</span><br><span class="line">	<span class="attr">"tags"</span>:[<span class="string">"java"</span>]</span><br><span class="line">&#125;</span><br><span class="line"></span><br><span class="line">PUT /store/book/3</span><br><span class="line">&#123;</span><br><span class="line">	<span class="attr">"bookId"</span>:<span class="number">2</span>,</span><br><span class="line">	<span class="attr">"bookName"</span>:<span class="string">"设计模式与java"</span>,</span><br><span class="line">	<span class="attr">"description"</span>:<span class="string">"售价300的java图书,关于设计模式的"</span>,</span><br><span class="line">	<span class="attr">"isbn"</span>:<span class="string">"11233123"</span>,</span><br><span class="line">	<span class="attr">"price"</span>:<span class="number">200</span>,</span><br><span class="line">	<span class="attr">"publishDate"</span>:<span class="number">1547430116594</span>,</span><br><span class="line">	<span class="attr">"tags"</span>:[<span class="string">"java"</span>,<span class="string">"设计模式"</span>]</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<h2 id="删"><a href="#删" class="headerlink" title="删"></a>删</h2><h2 id="改"><a href="#改" class="headerlink" title="改"></a>改</h2><figure class="highlight json"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br></pre></td><td class="code"><pre><span class="line">POST /store/book/1/_update</span><br><span class="line">&#123;</span><br><span class="line">  <span class="attr">"doc"</span>: </span><br><span class="line">  &#123;</span><br><span class="line">	  <span class="attr">"description"</span>:<span class="string">"更新后的描述信息"</span></span><br><span class="line">  &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<h2 id="查"><a href="#查" class="headerlink" title="查"></a>查</h2><h3 id="查询全部"><a href="#查询全部" class="headerlink" title="查询全部"></a>查询全部</h3><figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">GET /store/book/_search</span><br></pre></td></tr></table></figure>
<figure class="highlight json"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br></pre></td><td class="code"><pre><span class="line">GET /store/book/_search</span><br><span class="line">&#123;</span><br><span class="line">  <span class="attr">"query"</span>: &#123;<span class="attr">"match_all"</span>:&#123;&#125;&#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<h3 id="按字段匹配，排序"><a href="#按字段匹配，排序" class="headerlink" title="按字段匹配，排序"></a>按字段匹配，排序</h3><figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br></pre></td><td class="code"><pre><span class="line">GET /store/book/_search</span><br><span class="line">&#123;</span><br><span class="line">  "query": </span><br><span class="line">  &#123;</span><br><span class="line">    "match": </span><br><span class="line">    &#123;</span><br><span class="line">      "tags": "java"</span><br><span class="line">    &#125;</span><br><span class="line">    </span><br><span class="line">  &#125;,</span><br><span class="line">  "sort": [</span><br><span class="line">    &#123;</span><br><span class="line">      "price": &#123;</span><br><span class="line">        "order": "desc"</span><br><span class="line">      &#125;</span><br><span class="line">    &#125;</span><br><span class="line">  ]</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<h3 id="多条件"><a href="#多条件" class="headerlink" title="多条件"></a>多条件</h3><figure class="highlight json"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br></pre></td><td class="code"><pre><span class="line">GET /store/book/_search</span><br><span class="line">&#123;</span><br><span class="line">  <span class="attr">"query"</span>: &#123;</span><br><span class="line">    <span class="attr">"bool"</span>: &#123;</span><br><span class="line">      <span class="attr">"must"</span>: [</span><br><span class="line">        &#123;</span><br><span class="line">          <span class="attr">"match"</span>: &#123;</span><br><span class="line">          <span class="attr">"tags"</span>: <span class="string">"java"</span></span><br><span class="line">          &#125;</span><br><span class="line">        &#125;</span><br><span class="line">      ],</span><br><span class="line">      <span class="attr">"filter"</span>: &#123;</span><br><span class="line">        <span class="attr">"range"</span>: &#123;</span><br><span class="line">          <span class="attr">"price"</span>: &#123;</span><br><span class="line">            <span class="attr">"gte"</span>: <span class="number">100</span>,</span><br><span class="line">            <span class="attr">"lte"</span>: <span class="number">500</span></span><br><span class="line">          &#125;</span><br><span class="line">        &#125;</span><br><span class="line">      &#125;</span><br><span class="line">    &#125;</span><br><span class="line">  &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<h3 id="分页"><a href="#分页" class="headerlink" title="分页"></a>分页</h3><p>from,size 相当于 mysql的limit</p>
<figure class="highlight json"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br></pre></td><td class="code"><pre><span class="line">GET /store/book/_search</span><br><span class="line">&#123;</span><br><span class="line">  <span class="attr">"query"</span>: &#123;<span class="attr">"match_all"</span>:&#123;&#125;&#125;,</span><br><span class="line">  <span class="attr">"from"</span>: <span class="number">0</span>,</span><br><span class="line">  <span class="attr">"size"</span>: <span class="number">1</span></span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<h3 id="查询部分字段"><a href="#查询部分字段" class="headerlink" title="查询部分字段"></a>查询部分字段</h3><figure class="highlight json"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br></pre></td><td class="code"><pre><span class="line">GET /store/book/_search</span><br><span class="line">&#123;</span><br><span class="line">  <span class="attr">"query"</span>: &#123;<span class="attr">"match_all"</span>:&#123;&#125;&#125;,</span><br><span class="line">  <span class="attr">"_source"</span>: [<span class="string">"bookId"</span>,<span class="string">"bookName"</span>]</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<h3 id="全文检索"><a href="#全文检索" class="headerlink" title="全文检索"></a>全文检索</h3><p>描述包含”售价 设计模式”排最前面</p>
<figure class="highlight json"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br></pre></td><td class="code"><pre><span class="line">GET /store/book/_search</span><br><span class="line">&#123;</span><br><span class="line">  <span class="attr">"query"</span>: &#123;</span><br><span class="line">    <span class="attr">"match"</span>: &#123;</span><br><span class="line">      <span class="attr">"description"</span>: <span class="string">"售价 设计模式"</span></span><br><span class="line">    &#125;</span><br><span class="line">  &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<h3 id="高亮"><a href="#高亮" class="headerlink" title="高亮"></a>高亮</h3><p>高亮描述字段</p>
<figure class="highlight json"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br></pre></td><td class="code"><pre><span class="line">GET /store/book/_search</span><br><span class="line">&#123;</span><br><span class="line">  <span class="attr">"query"</span>: &#123;</span><br><span class="line">    <span class="attr">"match"</span>: &#123;</span><br><span class="line">      <span class="attr">"description"</span>: <span class="string">"售价 虚拟机"</span></span><br><span class="line">    &#125;</span><br><span class="line">  &#125;,</span><br><span class="line">  <span class="attr">"highlight"</span>: &#123;</span><br><span class="line">    <span class="attr">"fields"</span>: &#123;</span><br><span class="line">      <span class="attr">"description"</span>: &#123;&#125;</span><br><span class="line">    &#125;</span><br><span class="line">  &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<h2 id="统计"><a href="#统计" class="headerlink" title="统计"></a>统计</h2><h3 id="修改字段属性为可以统计"><a href="#修改字段属性为可以统计" class="headerlink" title="修改字段属性为可以统计"></a>修改字段属性为可以统计</h3><figure class="highlight json"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br></pre></td><td class="code"><pre><span class="line">PUT /store/_mapping/book</span><br><span class="line">&#123;</span><br><span class="line">  <span class="attr">"properties"</span>: &#123;</span><br><span class="line">    <span class="attr">"tags"</span>:&#123;</span><br><span class="line">      <span class="attr">"type"</span>: <span class="string">"text"</span>,</span><br><span class="line">      <span class="attr">"fielddata"</span>: <span class="literal">true</span></span><br><span class="line">    &#125;</span><br><span class="line">  &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<h3 id="groupby"><a href="#groupby" class="headerlink" title="groupby"></a>groupby</h3><figure class="highlight sql"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">select</span> tags, <span class="keyword">count</span>(*) <span class="keyword">from</span> book <span class="keyword">group</span> <span class="keyword">by</span> tags</span><br></pre></td></tr></table></figure>
<figure class="highlight json"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br></pre></td><td class="code"><pre><span class="line">GET /store/book/_search</span><br><span class="line">&#123;</span><br><span class="line">  <span class="attr">"aggs"</span>: &#123;</span><br><span class="line">    <span class="attr">"mygroup"</span>: &#123;</span><br><span class="line">      <span class="attr">"terms"</span>: &#123;</span><br><span class="line">        <span class="attr">"field"</span>: <span class="string">"tags"</span></span><br><span class="line">      &#125;</span><br><span class="line">    &#125;</span><br><span class="line">  &#125;,</span><br><span class="line">  <span class="attr">"size"</span>: <span class="number">0</span></span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<h3 id="avg"><a href="#avg" class="headerlink" title="avg"></a>avg</h3><figure class="highlight sql"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">select</span> tags,<span class="keyword">count</span>(*),<span class="keyword">avg</span>(price) <span class="keyword">from</span> book <span class="keyword">group</span> <span class="keyword">by</span> tags</span><br></pre></td></tr></table></figure>
<figure class="highlight json"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br></pre></td><td class="code"><pre><span class="line">GET /store/book/_search</span><br><span class="line">&#123;</span><br><span class="line">  <span class="attr">"aggs"</span>: &#123;</span><br><span class="line">    <span class="attr">"groupbytags"</span>: &#123;</span><br><span class="line">      <span class="attr">"terms"</span>: &#123;</span><br><span class="line">        <span class="attr">"field"</span>: <span class="string">"tags"</span></span><br><span class="line">      &#125;,</span><br><span class="line">      <span class="attr">"aggs"</span>: &#123;</span><br><span class="line">        <span class="attr">"avgprice"</span>: &#123;</span><br><span class="line">          <span class="attr">"avg"</span>: &#123;</span><br><span class="line">            <span class="attr">"field"</span>: <span class="string">"price"</span></span><br><span class="line">          &#125;</span><br><span class="line">        &#125;</span><br><span class="line">      &#125;</span><br><span class="line">    &#125;</span><br><span class="line">  &#125;,</span><br><span class="line">  <span class="attr">"size"</span>: <span class="number">0</span></span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<h3 id="orderby"><a href="#orderby" class="headerlink" title="orderby"></a>orderby</h3><figure class="highlight sql"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">select</span> tags,<span class="keyword">count</span>(*),<span class="keyword">avg</span>(price) avgprice pp <span class="keyword">from</span> book <span class="keyword">group</span> <span class="keyword">by</span> tags <span class="keyword">order</span> <span class="keyword">by</span> avgprice</span><br></pre></td></tr></table></figure>
<figure class="highlight json"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br></pre></td><td class="code"><pre><span class="line">GET /store/book/_search</span><br><span class="line">&#123;</span><br><span class="line">  <span class="attr">"aggs"</span>: &#123;</span><br><span class="line">    <span class="attr">"groupbytags"</span>: &#123;</span><br><span class="line">      <span class="attr">"terms"</span>: &#123;</span><br><span class="line">        <span class="attr">"field"</span>: <span class="string">"tags"</span>,</span><br><span class="line">        <span class="attr">"order"</span>: &#123;</span><br><span class="line">          <span class="attr">"avgprice"</span>: <span class="string">"asc"</span></span><br><span class="line">        &#125;</span><br><span class="line">      &#125;,</span><br><span class="line">      <span class="attr">"aggs"</span>: &#123;</span><br><span class="line">        <span class="attr">"avgprice"</span>: &#123;</span><br><span class="line">          <span class="attr">"avg"</span>: &#123;</span><br><span class="line">            <span class="attr">"field"</span>: <span class="string">"price"</span></span><br><span class="line">          &#125;</span><br><span class="line">        &#125;</span><br><span class="line">      &#125;</span><br><span class="line">    &#125;</span><br><span class="line">  &#125;,</span><br><span class="line">  <span class="attr">"size"</span>: <span class="number">0</span></span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<h3 id="case"><a href="#case" class="headerlink" title="case"></a>case</h3><figure class="highlight sql"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">select</span> <span class="keyword">count</span>(<span class="keyword">case</span> <span class="keyword">when</span> price&gt;=<span class="number">0</span> <span class="keyword">and</span> preie&lt;<span class="number">100</span> <span class="keyword">then</span> tags,</span><br><span class="line">             <span class="keyword">case</span> <span class="keyword">when</span> price&gt;=<span class="number">100</span> <span class="keyword">and</span> preie&lt;<span class="number">200</span> <span class="keyword">then</span> tags</span><br><span class="line">            ) <span class="keyword">from</span> book</span><br></pre></td></tr></table></figure>
<figure class="highlight json"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br></pre></td><td class="code"><pre><span class="line">GET /store/book/_search</span><br><span class="line">&#123;</span><br><span class="line">  <span class="attr">"aggs"</span>: &#123;</span><br><span class="line">    <span class="attr">"statprice"</span>: &#123;</span><br><span class="line">      <span class="attr">"range"</span>: &#123;</span><br><span class="line">        <span class="attr">"field"</span>: <span class="string">"price"</span>,</span><br><span class="line">        <span class="attr">"ranges"</span>: [</span><br><span class="line">          &#123;</span><br><span class="line">            <span class="attr">"from"</span>:<span class="number">0</span>,</span><br><span class="line">            <span class="attr">"to"</span>: <span class="number">100</span></span><br><span class="line">          &#125;,</span><br><span class="line">          &#123;</span><br><span class="line">            <span class="attr">"from"</span>:<span class="number">100</span>,</span><br><span class="line">            <span class="attr">"to"</span>: <span class="number">200</span></span><br><span class="line">          &#125;,</span><br><span class="line">          &#123;</span><br><span class="line">            <span class="attr">"from"</span>:<span class="number">200</span>,</span><br><span class="line">            <span class="attr">"to"</span>: <span class="number">300</span></span><br><span class="line">          &#125;</span><br><span class="line">        ]</span><br><span class="line">      &#125;,</span><br><span class="line">      <span class="attr">"aggs"</span>: &#123;</span><br><span class="line">        <span class="attr">"groupbytags"</span>: &#123;</span><br><span class="line">          <span class="attr">"terms"</span>: &#123;</span><br><span class="line">            <span class="attr">"field"</span>: <span class="string">"tags"</span></span><br><span class="line">          &#125;</span><br><span class="line">        &#125;</span><br><span class="line">      &#125;</span><br><span class="line">    &#125;</span><br><span class="line">  &#125;,</span><br><span class="line">  <span class="attr">"size"</span>: <span class="number">0</span></span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
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                    hitCount = indexOfTitle.length + indexOfContent.length;
                  }
                }

                // show search results

                if (isMatch) {
                  // sort index by position of keyword

                  [indexOfTitle, indexOfContent].forEach(function (index) {
                    index.sort(function (itemLeft, itemRight) {
                      if (itemRight.position !== itemLeft.position) {
                        return itemRight.position - itemLeft.position;
                      } else {
                        return itemLeft.word.length - itemRight.word.length;
                      }
                    });
                  });

                  // merge hits into slices

                  function mergeIntoSlice(text, start, end, index) {
                    var item = index[index.length - 1];
                    var position = item.position;
                    var word = item.word;
                    var hits = [];
                    var searchTextCountInSlice = 0;
                    while (position + word.length <= end && index.length != 0) {
                      if (word === searchText) {
                        searchTextCountInSlice++;
                      }
                      hits.push({position: position, length: word.length});
                      var wordEnd = position + word.length;

                      // move to next position of hit

                      index.pop();
                      while (index.length != 0) {
                        item = index[index.length - 1];
                        position = item.position;
                        word = item.word;
                        if (wordEnd > position) {
                          index.pop();
                        } else {
                          break;
                        }
                      }
                    }
                    searchTextCount += searchTextCountInSlice;
                    return {
                      hits: hits,
                      start: start,
                      end: end,
                      searchTextCount: searchTextCountInSlice
                    };
                  }

                  var slicesOfTitle = [];
                  if (indexOfTitle.length != 0) {
                    slicesOfTitle.push(mergeIntoSlice(title, 0, title.length, indexOfTitle));
                  }

                  var slicesOfContent = [];
                  while (indexOfContent.length != 0) {
                    var item = indexOfContent[indexOfContent.length - 1];
                    var position = item.position;
                    var word = item.word;
                    // cut out 100 characters
                    var start = position - 20;
                    var end = position + 80;
                    if(start < 0){
                      start = 0;
                    }
                    if (end < position + word.length) {
                      end = position + word.length;
                    }
                    if(end > content.length){
                      end = content.length;
                    }
                    slicesOfContent.push(mergeIntoSlice(content, start, end, indexOfContent));
                  }

                  // sort slices in content by search text's count and hits' count

                  slicesOfContent.sort(function (sliceLeft, sliceRight) {
                    if (sliceLeft.searchTextCount !== sliceRight.searchTextCount) {
                      return sliceRight.searchTextCount - sliceLeft.searchTextCount;
                    } else if (sliceLeft.hits.length !== sliceRight.hits.length) {
                      return sliceRight.hits.length - sliceLeft.hits.length;
                    } else {
                      return sliceLeft.start - sliceRight.start;
                    }
                  });

                  // select top N slices in content

                  var upperBound = parseInt('1');
                  if (upperBound >= 0) {
                    slicesOfContent = slicesOfContent.slice(0, upperBound);
                  }

                  // highlight title and content

                  function highlightKeyword(text, slice) {
                    var result = '';
                    var prevEnd = slice.start;
                    slice.hits.forEach(function (hit) {
                      result += text.substring(prevEnd, hit.position);
                      var end = hit.position + hit.length;
                      result += '<b class="search-keyword">' + text.substring(hit.position, end) + '</b>';
                      prevEnd = end;
                    });
                    result += text.substring(prevEnd, slice.end);
                    return result;
                  }

                  var resultItem = '';

                  if (slicesOfTitle.length != 0) {
                    resultItem += "<li><a href='" + articleUrl + "' class='search-result-title'>" + highlightKeyword(title, slicesOfTitle[0]) + "</a>";
                  } else {
                    resultItem += "<li><a href='" + articleUrl + "' class='search-result-title'>" + title + "</a>";
                  }

                  slicesOfContent.forEach(function (slice) {
                    resultItem += "<a href='" + articleUrl + "'>" +
                      "<p class=\"search-result\">" + highlightKeyword(content, slice) +
                      "...</p>" + "</a>";
                  });

                  resultItem += "</li>";
                  resultItems.push({
                    item: resultItem,
                    searchTextCount: searchTextCount,
                    hitCount: hitCount,
                    id: resultItems.length
                  });
                }
              })
            };
            if (keywords.length === 1 && keywords[0] === "") {
              resultContent.innerHTML = '<div id="no-result"><i class="fa fa-search fa-5x" /></div>'
            } else if (resultItems.length === 0) {
              resultContent.innerHTML = '<div id="no-result"><i class="fa fa-frown-o fa-5x" /></div>'
            } else {
              resultItems.sort(function (resultLeft, resultRight) {
                if (resultLeft.searchTextCount !== resultRight.searchTextCount) {
                  return resultRight.searchTextCount - resultLeft.searchTextCount;
                } else if (resultLeft.hitCount !== resultRight.hitCount) {
                  return resultRight.hitCount - resultLeft.hitCount;
                } else {
                  return resultRight.id - resultLeft.id;
                }
              });
              var searchResultList = '<ul class=\"search-result-list\">';
              resultItems.forEach(function (result) {
                searchResultList += result.item;
              })
              searchResultList += "</ul>";
              resultContent.innerHTML = searchResultList;
            }
          }

          if ('auto' === 'auto') {
            input.addEventListener('input', inputEventFunction);
          } else {
            $('.search-icon').click(inputEventFunction);
            input.addEventListener('keypress', function (event) {
              if (event.keyCode === 13) {
                inputEventFunction();
              }
            });
          }

          // remove loading animation
          $(".local-search-pop-overlay").remove();
          $('body').css('overflow', '');

          proceedsearch();
        }
      });
    }

    // handle and trigger popup window;
    $('.popup-trigger').click(function(e) {
      e.stopPropagation();
      if (isfetched === false) {
        searchFunc(path, 'local-search-input', 'local-search-result');
      } else {
        proceedsearch();
      };
    });

    $('.popup-btn-close').click(onPopupClose);
    $('.popup').click(function(e){
      e.stopPropagation();
    });
    $(document).on('keyup', function (event) {
      var shouldDismissSearchPopup = event.which === 27 &&
        $('.search-popup').is(':visible');
      if (shouldDismissSearchPopup) {
        onPopupClose();
      }
    });
  </script>





  

  
  <script src="https://cdn1.lncld.net/static/js/av-core-mini-0.6.4.js"></script>
  <script>AV.initialize("CIBUz5A0KNFv8xbAPO8ncqk6-gzGzoHsz", "YtGifAKqwENTTs9hhQ1GxdAG");</script>
  <script>
    function showTime(Counter) {
      var query = new AV.Query(Counter);
      var entries = [];
      var $visitors = $(".leancloud_visitors");

      $visitors.each(function () {
        entries.push( $(this).attr("id").trim() );
      });

      query.containedIn('url', entries);
      query.find()
        .done(function (results) {
          var COUNT_CONTAINER_REF = '.leancloud-visitors-count';

          if (results.length === 0) {
            $visitors.find(COUNT_CONTAINER_REF).text(0);
            return;
          }

          for (var i = 0; i < results.length; i++) {
            var item = results[i];
            var url = item.get('url');
            var time = item.get('time');
            var element = document.getElementById(url);

            $(element).find(COUNT_CONTAINER_REF).text(time);
          }
          for(var i = 0; i < entries.length; i++) {
            var url = entries[i];
            var element = document.getElementById(url);
            var countSpan = $(element).find(COUNT_CONTAINER_REF);
            if( countSpan.text() == '') {
              countSpan.text(0);
            }
          }
        })
        .fail(function (object, error) {
          console.log("Error: " + error.code + " " + error.message);
        });
    }

    function addCount(Counter) {
      var $visitors = $(".leancloud_visitors");
      var url = $visitors.attr('id').trim();
      var title = $visitors.attr('data-flag-title').trim();
      var query = new AV.Query(Counter);

      query.equalTo("url", url);
      query.find({
        success: function(results) {
          if (results.length > 0) {
            var counter = results[0];
            counter.fetchWhenSave(true);
            counter.increment("time");
            
            counter.save(null, {
              success: function(counter) {
                
                  var $element = $(document.getElementById(url));
                  $element.find('.leancloud-visitors-count').text(counter.get('time'));
                
              },
              error: function(counter, error) {
                console.log('Failed to save Visitor num, with error message: ' + error.message);
              }
            });
          } else {
            
              var newcounter = new Counter();
              /* Set ACL */
              var acl = new AV.ACL();
              acl.setPublicReadAccess(true);
              acl.setPublicWriteAccess(true);
              newcounter.setACL(acl);
              /* End Set ACL */
              newcounter.set("title", title);
              newcounter.set("url", url);
              newcounter.set("time", 1);
              newcounter.save(null, {
                success: function(newcounter) {
                  var $element = $(document.getElementById(url));
                  $element.find('.leancloud-visitors-count').text(newcounter.get('time'));
                },
                error: function(newcounter, error) {
                  console.log('Failed to create');
                }
              });
            
          }
        },
        error: function(error) {
          console.log('Error:' + error.code + " " + error.message);
        }
      });
    }

    $(function() {
      var Counter = AV.Object.extend("Counter");
      if ($('.leancloud_visitors').length == 1) {
        addCount(Counter);
      } else if ($('.post-title-link').length > 1) {
        showTime(Counter);
      }
    });
  </script>



  

  

  

  
  

  

  

  

  

  

</body>
</html>
